The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2009
Filed:
Apr. 06, 2006
Applicant:
Tomokazu Yoshida, Ebina, JP;
Inventor:
Tomokazu Yoshida, Ebina, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 3/00 (2006.01); H04N 5/335 (2006.01); G02B 7/04 (2006.01); G02B 27/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A focus detection apparatus includes an image sensor that applies photoelectric conversion to incident light and accumulates charge, a first output unit that outputs electric signals based on the charge accumulated in the image sensor through multiple channels, and a focus detection unit that detects a phase difference on the basis of the electric signals outputted from the plurality of channels.